You are given a sentence and a question. You're expected to write the correct answer based on the sentence.

Example Input: Sentence: A microphone rolling across a chair makes it get hotter then one rolling across a stage. Question: Which surface is the most smooth?
Example Output: stage

Example Input: Sentence: A huge bodybuilder and a skinny swimmer see who can throw a 45 pound plate further. Question: Who wins this contest?
Example Output: Bodybuilder

Example Input: Sentence: Sarah brushed her hair. Some fell off and turned into a hairball on the bathroom rug. Then Joe walked across the bathroom. The hairball moved a foot across the rug. then it moved a few inches across the pile of laundry next to the rug. Question: On which of these areas did the hairball encounter more friction?
Example Output:
pile of clothes

